Moto Asagi is the adopted grandmother of Marin Asagi in the anime Brigadoon: Marin to Melan. An elderly woman with light grey hair and brown eyes, she lives with Marin in a tenement house in a version of Tokyo set in 1969. She and her husband Gen found Marin abandoned on their doorstep as an infant and chose to raise her as their own, having recently lost their own son in the war. Moto Asagi is a strong and independent woman who cares for Marin with fierce devotion and will do anything to protect her. She is also wise and thoughtful, often offering sound advice to those around her. Despite the extraordinary events that unfold when the alien warrior Melan Blue enters Marin's life, Moto Asagi shows a broad tolerance and accepts Melan, demonstrating her open-mindedness and resilience. Her role in the story is that of a stabilizing, nurturing presence for Marin, providing emotional support and a sense of normalcy amid the chaos caused by the arrival of beings from the otherworldly realm of Brigadoon. Her death occurs after she takes Marin to the Expo, a loss that strikes Marin deeply and becomes a pivotal turning point in the series, profoundly shaping Marin's emotional journey and her resolve going forward.